Engine.



J. D. BARTER.

ENGINE. APPLICATION FILED DEC-14, 19.12.

Patented Aug. 17, 1915.

3 SHEETSSHEET 1.

growers J. D. BARTER.

ENGINE.

APPLICATION FILED'DEC.14,1912.-

3 SHEETS-SHEET 2.

Patented Aug. 1?,

l/VVE/VTOR John D. Buffer- ATTORNEYS W/T NESSE S ENGINE.

Specification of Letters Patent.

Patented Aug. 17, 1915.

Application filed Becember is, 1912. Serial No. 736,714.

To all ItZilI/Il. it may concern lie it known that 1, Joan D. Barron, citizen of .Alberta, Canada, and residing in the city of Calgary, Llanada, have invented a new and Improved Engine, of which the following is a full, clear, and exact descriptiou.

This invention relates to that class of engines in which a multiplicity of cylinders are connected to a single crank casing and adapted to rotate around the center of such casing.

Among the objects of the invention is to provide an engine of the character indicated which will be compact and adapted especially for aeronautical operations, the number of parts being comparatively small and the weight being small in comparison with its power.

Another object of the invention is to pro vide a constructimi including one or more crank disks journaled for rotation in a fixed support on an axis eccentric to the axis of rotation of the main engine system including a casing, means being provided to couple the disk and casing together for simultaneous rotation at the same angular velocity, and means also being provided to cause a bodily displacement relatively between the casing and disk during such rotation.

Another object of the invention is to improve this class of engines with respect to the admission of explosive mixtures and the exhaust of the burned gases.

A. still further object oiithc invention is to utilize to the highest advantage the op oration of the two-cycle engii'xc.

The foregoing and other objects of the invention will hereinafter be fully described and claimed and illustrated in the drawings accompanying this specification in which like characters of reference indicate corresponding parts in all the views, and in which- Figure 1 is a vertical sectional View of the engine substantially on the line 1-1 of Fig. 3; Fig. 2 is a transverse sectional detail on the line 22 of Fig. 1; Fig. 3 is a vertical section, at right angles to Fig. 1, taken on the line 33 of Fig. 1; Fig. i is a fragmentary detail or" the casing and one of the disks taken on the line 44 of Fig. 3; Fig. 5 is a plan view of a piston and associated parts; and Fig. 6 is a detail view corresponding to the section of Fig. 3, certain movable parts, however, being in different positions from those of Fig. 3.

Referring particularly to the drawings, I show at 10 what may be considered. as a stationary support having a circular periphery and around which the casing 11 of the en gine is adapted to rotate concentrically. The joint between said support and the easing is preferably packed at ll to make it oil tight. On the opposite side of the casing and extending outwardly therefrom is a shaft 12, journaled concentrically with the support 10 in. a bearing 13. The shaft 12 may be considered for the purpose of the present description as the driven or power shaft.

14 and 1% represent a pair of disks arranged parallel to each other and anchored together for conjoint operation by means of any suitable number of cross bars 15.- Said disks are provided with gudgeons 16 and 16 journaled co-axially with each other in the aforesaid support 10 and a floating disk 10', respectively. The floating disk 10 may be regarded in eifect as an extension of said support 10, though separate therefrom physically, and loosely journaled in the inner face of the casing plate 11'. The axis of the disks will, therefore, be understood to be eccentric to th axis of the support 10 and shaft 12, and so far as now described saiddisks are free to rotate around their said axis. disks are coupled together by means of a plurality of links i7, each of which is pivotally connected at one end on a stud 18 carried by the casing and at the other end on a stud 19 carried by one of the disks. The effective length of said links 17 or the distance between the centers of the studs 18 and 19 equal to the eccentricity of the disks or the distance between their axis and that of the casing. It will be understood, therefore, that the casing and disks will rotate simultaneously and at the same angular velocity, though on different axes.

As shown in the drawings I provide a'se' ries of cylinders 20, each provided with a piston 21 and piston rod 22. The piston rod is rigidly fixed to the piston and reciprocates through a gland 23 at the inner end of the cylinder. All of the piston rods are connected to the disks through a series of links The engine casing 11 and the 2a, each link being pivoted at one end at 25 to the inner end of a piston rod and at its other end to a stud 26 carried by one of the disks. The links 24 are all equal in length to the hills 17 and thfe aforesaid eccentricity.

Referring to Fig, 1 the lowermost-cylinder 20 may be regarded as being charged with compressed gases ready for an ignition. 'As

soon as this cylinder passes from. the position indicated, or with the point just over eccentricity said force will tend to rotate the entire system of cylinders and casing, and hence the power shaft 12 connected to the casing. Considering the direction of rotation as indicated by the large arrow on Fig. 1, the pistons at the right will be understood to be acting inwardly under the force of the explosions in the several cylinders, and the piston at the top of the figure will be understood to have reached the end of its inner stroke. The pistons at the left will be understood as being moyed outwardly, causing fresh gases to be introduced into the cylinders through the valves 28.

The means I employ for introducing ex-.

plosive mixtures to the several cylinders comprises a port 29 extending through the support 10 and having communication at 29 with a chamber .having connection through a transverse passage 30, as shown in Fig. 2, to a valve 28 through which said mixture may be admitted into the bottom-of the respective cylinder. It will,'of course,

be understood that the several chambers 30 will be brought into register successively with the port 29 at the time the pistons will operate to cause. the fresh gases to be adinittcd. The valves 28 will, of course, be held seated at other times as usual in this type 01? engines. 1. Each pistonvon its outward stroke will therefore serve, in connection with introducing a fresh charge, to place the previously admitted charge undercompression on the outside of the piston or adjacent the spark.

plug :27. The force of the explosion, as above intimated, will drive the piston inward, and when the piston reaches the point indicated in Fig. 6 the fresh mixture will I be compressed sufficiently to cause the unseating of the valve 31 which will admit the fresh charge through the piston, such fresh charge serving in part to purge the burned gases from the last previous explosion out of the cylinder, the bulk of such fresh mixture being retained in the cylinder above the pis ton ready to be compressed for the next succeeding explosion, as is usual in engines oi The auxiliary cylinder 32 has communication with the cylinder 20 through several ports, the ports 37 and 38 communicating with the inner and. outer ends respectively of the cylinder 32. The inner end of the port 38 communicates with the, cylinder 20 in the same transverse plane as a'port 39 which, when the piston-33 is'in abnormal position communicates directly with the exhaust p'ort'36 as shown in Fig. 6. When the piston is operating inwardly under the force oi the explosion, the piston 33 will remain in its normal position and will so remain until the inner end of the port '38is passed or uncov 'ered-by the piston 21 and the outer end of the piston 33 will be subjected to the superior force of the exploded gases acting thereon through said port 38, causing the piston 33 to move inwardly against the tension of the springifii. In this abnormal position of the piston 33 the exhaust port 39 will be open and in communication with the ort 36, permitting a quick exhaust of the urned gases. As'soon as the pressures are equalizednon the opposite sides ofthe piston 21, the piston 33 will be restored to its normal position by virtue oi the spring 34 and the fact or the balancing-forces ports 37 and38. V It is to be understood thatthe pressure through 'the greater tha'nth'at of the fresh charge being compressed in the inner end ofthe cylinder,-

until the piston-'21 uncovers the inner end of the port 38. Then the force of the explodedgases will'move the piston 33 inw'ardly against the tension of its spring to open the exhaust port 39 and permit a quick exhaust of the' burned gases. V'Vhen this takes place the pressure of the compressed charge will be sufiicient to open the'valve 31 to admit the compressed charge to the cylinder.

The several parts of this engine may be of the a burned gases on the piston 21 is made of any suitable materials and the relative sizes and roportions and'also the several details of? in many particulars without departing from the spirit of the invention. I Wish, therefore, not to be limited in the matters. specifically illustrated except as may be re-" quired by the state of the art.

construction may be varied Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. In an engine, the combination of a support, a crank casing rotatable concentrically around said support, a plurality of cylinders connected rigidly with said casing, each of said cylinders being provided with a piston'and a piston rod movable radially in said casing, a disk journaled in said support for rotation on an axis eccentric to the axis of the casing, links coupling the casing and disk together for simultaneous rotation, and

links equal in length to the first mentioned links and connecting said piston rods to said disk.

2. In an engine, the combination of a support, a casing mounted on said support and rotatable therearound concentrically, a disk journaled in said support on an axis eccentric to the aforesaid axis of rotation of the casing, a series of cylinders fixed to said casing and rotatable therewith around the axis of the support, a series of pistons and piston rods operably associated with said cylinders, the piston rods being rigidly connected with said pistons, link connections between the piston rods and said disk, and means to admit explosive mixtures into the respective cylinders including a port through said support.

8. In an engine, the combination of a support and a bearing in axial alinement there with, a casing mounted on said support and journaled for rotation therearound, a shaft connected to said casing and extending outwardly therefrom in said bearing, a pair of disks journaled for rotation on an axis eccentric to the axis of said support and shaft, links coupling the casing and disks together for simultaneous rotation, a series of engine cylinders connected to said casing, a series of pistons in the respective cylinders, a series of corresponding piston rods and links equal in length to the first mentioned links and connecting the piston rods to said disks, substantially as set forth.

4. In an engine, the combination of a support, a casing mounted on said support and adapted to rotate concentrically therearound, a series-of cylinders rigidly connected to said casing, means to a it fresh mixtures to the respective cylinders, including a port leading through said support, and a series of chambers assopiated with the respective cylinders adapted to communicate successively with the aforesaid support port, pistons reciprocating in said cylinders, piston rods rigidly fixed to said pistons and reciprocating through glands at the inner ends of the cylinders, a pair of disks 'ournaled in said support on an axis eccentric to the axis of the support, and link connections between the several piston rods cylinders and said di'sks.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses,

' JOHN DOUGLAS BAR/PER. [L. 8-]

Witnesses:

WILLIAM WV. BUCK,

' LEO J. KEENER. 

